package main

import "fmt"

func main() {
	var i int =10;
	switch i {
	case 0:
		print(i)
	case 1:
		print(i)
	case 4,5,6:
		print(i)
	default:
		print("食屎")
	}

	var Num=1
	switch {
	case 0 <= Num && Num <= 3:
		fmt.Printf("0-3")
	case 4 <= Num && Num <= 6:
		fmt.Printf("4-6")
	case 7 <= Num && Num <= 9:
		fmt.Printf("7-9")
	}
}
